Class: RGen::Instantiator::QualifiedNameResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/rgen/instantiator/qualified_name_resolver.rb

Overview

This is a resolver resolving element identifiers which are qualified names.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rootElements, options = {}) ⇒ QualifiedNameResolver

Returns a new instance of QualifiedNameResolver.



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# File 'lib/rgen/instantiator/qualified_name_resolver.rb', line 14

def initialize(rootElements, options={})
  @rootElements = rootElements
  @nameAttribute = options[:nameAttribute] || "name"
  @separator = options[:separator] || "/"
  @leadingSeparator = options.has_key?(:leadingSeparator) ? options[:leadingSeparator] : true
  @elementByQName = {}
  @visitedQName = {}
  @childReferences = {}
  @resolverDelegate = ReferenceResolver.new(:identifier_resolver => method(:resolveIdentifier))
end

Instance Attribute Details

#leadingSeparator ⇒ Object (readonly)

Returns the value of attribute leadingSeparator.



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# File 'lib/rgen/instantiator/qualified_name_resolver.rb', line 12

def leadingSeparator
  @leadingSeparator
end

#nameAttribute ⇒ Object (readonly)

Returns the value of attribute nameAttribute.



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# File 'lib/rgen/instantiator/qualified_name_resolver.rb', line 10

def nameAttribute
  @nameAttribute
end

#separator ⇒ Object (readonly)

Returns the value of attribute separator.



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# File 'lib/rgen/instantiator/qualified_name_resolver.rb', line 11

def separator
  @separator
end

Instance Method Details

#resolveIdentifier(qualifiedName) ⇒ Object 



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# File 'lib/rgen/instantiator/qualified_name_resolver.rb', line 25

def resolveIdentifier(qualifiedName)
  return @elementByQName[qualifiedName] if @elementByQName.has_key?(qualifiedName)
  path = qualifiedName.split(separator).reject{|s| s == ""}
  if path.size > 1
    parentQName = (leadingSeparator ? separator : "") + path[0..-2].join(separator)
    parents = resolveIdentifier(parentQName)
    parents = [parents].compact unless parents.is_a?(Array)
    children = parents.collect{|p| allNamedChildren(p)}.flatten
  elsif path.size == 1
    parentQName = ""
    children = allRootNamedChildren
  else
    return @elementByQName[qualifiedName] = nil
  end
  # if the parent was already visited all matching elements are the hash 
  if !@visitedQName[parentQName]
    children.each do |c|
      name = c.send(nameAttribute)
      if name
        qname = parentQName + ((parentQName != "" || leadingSeparator) ? separator : "") + name
        existing = @elementByQName[qname]
        if existing 
          @elementByQName[qname] = [existing] unless existing.is_a?(Array)
          @elementByQName[qname] << c
        else
          @elementByQName[qname] = c 
        end
      end
    end
    # all named children of praent have been checked and hashed
    @visitedQName[parentQName] = true
  end
  @elementByQName[qualifiedName] ||= nil
end

#resolveReferences(unresolvedReferences, problems = []) ⇒ Object 



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# File 'lib/rgen/instantiator/qualified_name_resolver.rb', line 60

def resolveReferences(unresolvedReferences, problems=[])
  @resolverDelegate.resolve(unresolvedReferences, :problems => problems)
end